Longtime Vikings defensive tackle Kevin Williams paid a two-day free agent visit to the Giants this week, but boarded his flight out of New York yesterday without a deal in place, writes Mark Craig of the Star Tribune. “Had a good visit and gonna see what happens!” Williams said in a text message to Craig.

The Giants have already been one of the NFL’s most active teams in free agency, and they still have a little money left over for non-minimum-salary additions. If New York is able to lock up the run-stopping Williams – and perhaps a veteran quarterback as insurance for Eli Manning – it could be the cherry on top of a pretty impressive few weeks for the club.

Here’s more from around the NFC East:

While the Giants have been extremely active in free agency and have improved their roster, Jason Fitzgerald of OverTheCap.com questions the cost of doing so, and gives the club a C+ grade for its work. Fitzgerald also continues his free agency evaluations by looking at the Cowboys, who received a C grade.

West Virginia running back Charles Sims is expected to visit the Redskins today, according to Adam Caplan of ESPN.com (Twitter link), who adds that Sims is coming off a “great set of practices” during Senior Bowl week.

Mike Jones of the Washington Post fields several Redskins-related questions from readers in his latest mailbag, discussing the team’s draft priorities and salary cap situation, among other topics.